Multiple Choice
Identify the choice that best completes the statement or answers
the question.
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1.
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What happens when a rubber rod is rubbed with a
piece of fur, giving it a negative charge?
a. | Protons are removed from the rod. | c. | Electrons are added to the fur. | b. | Electrons are added to the rod. | d. | The fur is left
neutral. |
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2.
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A repelling force occurs between two charged
objects when the charges are of
a. | unlike signs. | c. | equal
magnitude. | b. | like
signs. | d. | unequal magnitude. |
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3.
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An attracting force occurs between two charged
objects when the charges are of
a. | unlike signs. | c. | equal
magnitude. | b. | like
signs. | d. | unequal magnitude. |
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4.
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When a glass rod is rubbed with silk and becomes
positively charged,
a. | electrons are removed from the
rod. | c. | protons are added to the
silk. | b. | protons are removed from the
silk. | d. | the silk remains neutral. |
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5.
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Electric charge is
a. | found only in a conductor. | c. | found only in insulators. | b. | conserved. | d. | not conserved. |
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6.
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If a positively charged glass rod is used to charge
a metal bar by induction, the charge on the bar
a. | will be equal in magnitude to the charge on the glass
rod. | b. | must be negative. | c. | must be positive. | d. | will be greater in
magnitude than the charge on the glass rod. |
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7.
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Charge is most easily transferred in
a. | nonconductors. | c. | semiconductors. | b. | conductors. | d. | insulators. |
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8.
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Which sentence best describes electrical
conductors?
a. | Electrical conductors have low mass
density. | b. | Electrical conductors have high tensile
strength. | c. | Electrical conductors have electric charges that move
freely. | d. | Electrical conductors are poor heat
conductors. |
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9.
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Which statement is the most correct
regarding electric insulators?
a. | Charges within electric insulators do not readily
move. | b. | Electric insulators have high tensile
strength. | c. | Electric charges move freely in electric
insulators. | d. | Electric
insulators are good heat conductors. |
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10.
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The process of charging a conductor by bringing it
near another charged object and then grounding the conductor is called
a. | contact charging. | c. | polarization | b. | induction. | d. | neutralization. |
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Short Answer. Use full sentences in
explanations.
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11.
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Explain what happens when you vigorously rub your
wool socks on a carpeted floor, touch a metal doorknob, and get a shock.
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12.
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When an object loses electrons, it acquires a(n)
____________________ electric charge.
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